Related Experiment Video
Updated: Jan 22, 2026

Designing Silk-silk Protein Alloy Materials for Biomedical Applications
Published on: August 13, 2014
Tailored Oxidation Barrier Coatings for Mo-Hf-B and Mo-Zr-B Alloys
Iryna Smokovych1, Volodymyr Bolbut2, Manja Krüger3
1Institute of Materials and Joining Technology, Otto-von-Guericke University Magdeburg, Universitätsplatz, 239106 Magdeburg, Germany.
Abstract:
The cyclic oxidation response of Mo-14Hf-23B and Mo-14.8Zr-26B (compositions in at. %) was investigated in air at 800 °C, which is a critical temperature for Mo-based alloys because of the pesting phenomenon. Rapid oxidation was observed for the unprotected samples, and an oxidation protection coating was developed based on a preceramic polymer with silicon and boron as particulate fillers. Cyclic oxidation tests of the coated samples showed excellent oxidation protection: no Mo, Hf or Zr oxides were found after testing and a small mass gain in the initial stage of oxidation indicated the formation of a glassy protection layer on the alloys surfaces after exposure to air at 800 °C.
Related Concept Videos
Oxidation Numbers
Pyruvate Oxidation
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
Oxidation-Reduction Reactions
Physiological Barriers
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...
Clathrin Coated Vesicles
COP Coated Vesicles

